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35 questions
The double-layered membrane that covers the outside of the heart is the endocardium.
True
False
The muscle layer of the heart is the ____________.
endocardium
ectocardium
pericardium
myocardium
The chamber of the heart that receives deoxygenated blood as it returns from body cells is the _________________.
Right Atrium
Right Ventricle
Left Atrium
Right Ventricle
Neutrophils, monocytes, thrombocytes, and lymphocytes are all different types of leukocytes.
True
False
The period of ventricular contraction in the heart is called diastole.
True
False
An embolus is a foreign substance circulating in the bloodstream.
True
False
The largest artery in the body is the _________.
Carotid
Femoral
Aorta
Coronary
The blood vessels that carry blood away from the heart are the __________.
arteries
veins
venules
capillaries
How much blood does the average adult have in his or her body?
2 to 4 quarts
4 to 6 quarts
6 to 8 quarts
3 to 4 quarts
Plasma is approximately 75% water with many suspended substances.
True
False
The smallest branches of arteries are called arterioles.
True
False
Arteriosclerosis is a ballooning out of, or saclike formation on, an artery wall.
True
False
Aplastic anemia is a result of injury to or destruction of the bone marrow.
True
False
Hypotension is high blood pressure.
True
False
The chamber of the heart that receives oxygenated blood as it returns from the lungs is the __________.
right atrium
right ventricle
left atrium
left ventricle
The valve between the right atrium and right ventricle that prevents blood from flowing back into the right atrium is the _______.
tricuspid valve
pulmonary valve
aortic valve
mitral valve
Hemoglobin carries both oxygen and carbon dioxide.
true
false
The valve between the left atrium and left ventricle that prevents blood from flowing back into the left atrium is the ________.
tricuspid valve
pulmonary valve
aortic valve
mitral valve
A normal leukocyte count per cubic millimeter of blood is _________.
5,000 to 9,000
10,000 to 20,000
250,000 to 400,000
4.5 million to 5.5 million
Which acid is required for the development of mature erythrocytes?
folic acid
hydrochloric acid
muriatic acid
sulfuric acid
Dilated, swollen veins that have lost elasticity and cause stasis, or decreased blood flow, are called __________.
phlebitis
aneurysm
varicose
emboli
An inflammation of a vein with the formation of a clot is ______.
phlebitis
thrombophlebitis
embolus
varicose vein
The blood cells that contain hemoglobin are the ___________.
leukocytes
platelets
erythrocytes
thrombocytes
The number of erythrocytes in one cubic millimeter of blood is _____.
250,000 to 400,000
5,000 to 9,000
4.5 to 5.5 million
25 trilllion
The bright red color of blood indicates _________.
anemia
venous blood
hemoglobin - carrying oxygen
fibrinogen - carrying oxygen
The blood cells that fight infection are the __________.
erythrocytes
leukocytes
thrombocytes
platelets
An inherited disease that occurs almost exclusively in males and in which the blood is unable to clot is __________.
anemia
leukemia
hemophilia
aneurysm
The _______________divides the heart into left and right sides.
septum
atria
ventricles